WO1996024512A1 - Seat belt suspender - Google Patents

Abstract

A seat belt suspender that makes it possible to reduce production costs by reducing material costs for a covering member with continued efforts to improve the safety. A seat belt suspender (10) for slidably suspending a seat belt (a webbing belt) (74) at an intermediate portion therealong where the belt is folded back, the belt capable of being fed out and prevented from being fed out in an emergency, comprises a base member (20) having an elongated hole (22) and made from a metal plate and a synthetic resin covering member (30) adapted to cover the base member (20) at at least the periphery of the elongated hole (22) and having a belt passing hole (31) at a portion corresponding to the elongated hole (22), wherein at least an edge portion (22a) of the elongated hole (22) that corresponds to a portion of the seat belt (74) where it is folded back is formed into a curved surface which is smoothly curved in a direction in which the seat belt (74) is folded back.

Description

 Description Sheetbelt Lifting equipment Technical field

 The present invention is designed to be able to be extended and to be extended in an emergency, for example, as in a three-point seatbelt for an automobile. The middle part of the seatbelt (jewelingbelt) that is set to stop is hung on its own side so that it can be turned back. The present invention relates to a seat belt suspension. Background art

 In recent years, in addition to a two-point seatbelt that holds only the lumbar area, the occupant's chest has been added to the safety of the occupant in the event of a collision. A three-point seat-belt car that holds it in a skewer shape is being adopted.

 FIG. 43A is a perspective view of the inside of the vehicle 1 illustrating the configuration of a three-point seatbelt 7 °. Note that the three-point seat belt is attached to all front and rear seats of the car 1, but for simplicity of explanation, This is explained using an example in which only seat 2 is installed.

The three-point seat belt 70 is provided on the floor between the first anchor 71 installed at the lower part of the center villa 13 and the driver's seat 2 and the passenger's seat 4. Of the second anchor 72 attached to the section and the third anchor 73 provided at the top of the sunset 13 It is designed to be bridged between points. And this.

The three-point seat belt 70 has one end attached to the first anchor 71 and the other end folded back at the third anchor 73. And a retracting belt 74 wound around a retractor (not shown) built in the sensor 13 and one end of the retracting belt 74. It has a fixed belt 75 attached to the anchor 72 and having a backing 77 at the other end. Also, in the middle of the ベ aving belt 4, a tang section 部 6 to be locked to the backing ノ 77 is provided.

 FIG. 43B is a perspective view showing a conventional seatbelt hanger 78 attached to the third fan force 73. The seatbelt hanger is shown in FIG. As shown in FIGS. 43B and C, the holder 78 is made of a base member 80 made of a metal plate (metal plate) having a bolt insertion hole 81 and a long hole 82. A cover member 9 made of a base resin that covers the periphery of the elongated hole 82 of the base member 80 and forms a seat velvet through hole 91 in the portion of the elongated hole 82. ◦ and are provided. As shown in FIG. 43C, the elongated hole 82 is punched and ejected at a substantially right angle to the surface of the base member 80 over the entire circumference thereof. In addition, as shown in FIG. 44, the long holes 82 have long edges 82 a and 82 b facing each other and these long holes. Each of the long edges 8 2a, 8 2 is formed by short edges 8 2c, 8 2d connecting both ends of the edges 8 2a 8 2b. b and short edges 82c, 82d force, as described above, so as to be punched at substantially a right angle to the surface of base member 80. Is formed

—— One As shown in FIG. 44, the through hole 91 is formed so as to cover the long edges 82a and 82b and the short edges 82c and 82d. Along the long edge 82a, the folding belt 91 turns the self-contained belt 74 into its own position. ing .

 The seat belt hanger 78 configured as described above is applied to the third force 73 by the bolt inserted into the bolt through hole 81. It is fixed. Then, the self-belt belt 74 is suspended by the folded sliding portion 91a. Also, the single-belt belt 74 is generally treated with a fragrance to improve the lubricity of the covering material 90.o Further, as shown in FIG. 43A, the seatbelt hanger 78 holds the covering member 90 by so-called insert molding. The base member is formed integrally with the base member 80, that is, the base member is provided in a mold for forming the covering member 90.

After the 80 is inserted, the mold is closed, and the mold is filled with resin, so that a covered member integrated with the base member 80 is formed.

9 ◦ Can be molded.

However, as shown in FIG. 43C, in the conventional seat velorette hanger 78, the long hole 82 is formed in the base member 80 with respect to the base member 80. Since the rectangular hole is formed by being punched out vertically, the rectangular hole is formed in the elongated hole 82 and the elongated hole 82 is formed. A right-angled corner will be formed in the covering member 9G in contact with the surface, but there is a danger that stress will concentrate on such a right-angled corner. . That is, the covering material There is a danger that a large stress will be generated at the portion where the long hole 82 in 90 contacts. Therefore, when designing the covering member 90, the covering member 90 is formed thickly with a safety factor that is sufficiently large to be sufficiently exceeded. Thus, the covering member 90 is prevented from being absolutely damaged. This raises the problem that the material cost of the covering member 90 is high, high, and high.

77, 0

 In addition, in the conventional single-belt hanger 78, as shown in FIG. 44, as shown in FIG. 44, the folding slide portion 91 a normally breaks the link. The belt 74 will be suspended on its own, and will be suspended, and will be pulled sharply.

^ In the mouth, as shown in Fig. 45, the belt 7

4 Force << Move to one short edge 82c side of long hole 82, or concentrate intensively to short edge 82c side as shown in Fig. 46 You can do it. In particular, in the case of b-bink “benorette” 7 4 force << the short edge 8 2 c, which is concentrated on the c side, the covered member 9 〇 is moved from the base member 80 to There is a need to relieve the force that receives a large force and the force that acts on the covering member 90.

 In addition, in the conventional seat belt hanger 78 described above, due to the pressure of the resin in the insert molding, as shown in FIG. 47, The resin is easy to leak along the outer peripheral portion 83 of the base member 8 、, and the boundary 83 3 a between the outer peripheral portion 83 and the covering member 90 is formed. There is a problem that 0a is easily generated ^) Ο

Furthermore, the base member 80 is usually made of carbon steel. For example, since it is made of S550C (sAE1045 SAE105), it is necessary to heat it after forming it with a brass. It will improve the strength. This raises the problem that the number of manufacturing processes is large.o The bending force, that is, the base member 80 is bent by the heat treatment. When the base member 80 is put into a mold and the covering member 90 is to be formed by insert molding, the base member 8 is not attached to the mold. Excessive force is applied to correct the 0 to a normal shape.There is a problem that the life span of the mold is reduced due to ο. o In addition, the base member 8 で made of S55C material was molded into the ¾0 port (3, the base member 8

There is a risk of hydrogen embrittlement at 0 o For this reason, heat treatment to remove hydrogen embrittlement must be performed, and a very large number of manufacturing steps are required. Is this a problem?

 Therefore, the first purpose of the present invention is to improve the safety while reducing the material cost of the covering member, thereby achieving u The purpose is to provide a stilt belt suspension that can reduce the height of the tower.

 The second purpose of the present invention is that the seat belts are concentrated on one end of the slot, for example, in the direction of the long hole. Another object of the present invention is to provide a single-belt suspension device that reduces the force acting on the member to be covered from the base member.

Further, a third object of the present invention is to provide a method in which the outer peripheral edge of the base member is provided with a boundary between the base member and the covered member. The purpose of the present invention is to provide a seatbelt hanger capable of preventing the occurrence of slag.

 Further, the fourth object of the present invention is to reduce the number of manufacturing steps and to improve the life of a mold for inserting a base member. An object of the present invention is to provide a seat belt hanging device that can be used. Disclosure of the invention

 In order to achieve the above-mentioned purpose, the invention according to claim 1 is provided so as to be able to be dispensed and stops dispensing in an emergency. This is a sheet-belt hanger that hangs the middle of the seatbelt, which is installed in such a way that it can be folded back and hangs on its own. The base member made of a metal plate having a long hole, and at least the periphery of the long hole described above is covered to cover the long hole. And a cover member made of a synthetic resin for forming a seatbelt through hole at a portion where the seatbelt is to be formed, and the elongated hole is formed at least in the seatbelt fold. The edge corresponding to the part to be returned is formed into a curved surface that smoothly curves along the direction in which the seat belt is folded back. It is characterized by having been done.

The invention according to claim 2 is the invention according to claim 1, wherein at least a part of the seatbelt that is folded back is included in the invention. The edges of the corresponding slots are bulged out on the side of the base member, and slide along the direction in which the sheet belt is folded back. So that it is formed into a curved surface. It is characterized by

 The invention according to claim 3 is the invention according to claim 1, wherein at least the length corresponding to the folded portion of the seat belt is provided. The edge of the hole is bulged to one surface side and the other surface side of the base member, and along the direction in which the seat belt is folded back. It is characterized in that it is formed to form a smooth curved surface.

 The invention according to claim 4 is a seat which is provided so as to be able to be fed out and is provided so as to stop the ejection in an emergency. The belt is a sheet-belt hanger that is hung at its own position by folding it back, and is made of a metal plate with a long hole. A base member and at least a portion of the base member covering the periphery of the long hole, and forming a seat belt through hole in a portion corresponding to the long hole. A resin covering member is provided, and the longitudinal end of the long hole is formed into a smooth curved surface along the direction in which the seat belt is folded back. It is characterized by the fact that

 The invention according to claim 5 is the invention according to claim 4, wherein the longitudinal end of the long hole is bulged to one surface side of the base member. In addition to this, it is characterized in that the belt is formed to have a smooth curved surface along the direction in which the seat belt is folded back. .

The invention according to claim 6 is the invention according to claim 4, wherein the longitudinal end of the elongated hole is provided on one side of the base member and on the other side. Swell to the surface side and In addition, the invention is characterized in that the sheet belt is formed so as to have a smooth curved surface along the direction in which the sheet belt is folded back. The invention according to Paragraph 7 includes a seatbelt that is configured to be able to be extended and that is configured to stop the extension in an emergency. This is a sheet-belt hanger that hangs at an intermediate part of the slide belt so that it can be slid on its own, and passes through the seat belt. A base member made of a metal plate having a long hole and an S member made of a synthetic resin for covering the periphery of the long hole of the base member are provided. The outer peripheral edge of the base member is characterized in that a step set one step lower is provided at the boundary with the covering member. It is a sign.

 The invention according to claim 8 is characterized in that the base member is made of a high-tensile steel material formed by cold working. .

 Then, in the invention according to claim 1, if the seatbelt is in a state where it can be fed out, for example, the seatbelt is drawn. By stretching, the middle part of the seat belt is folded back by the covering member, and the sliding belt is pulled out from the sliding force. When the feeding of the seat belt is stopped, the pulling force of the seat belt acts directly on the covered member.

"9.

The force directly acting on the S member is applied to the elongated hole of the base member via the same member, and as a counteraction ffl, the covered member has a long length. The reaction force will be received from the edge of the hole. Fold at least the seat belt in the slot The edge corresponding to the turning position is a force that is formed into a curved surface that smoothly curves along the direction in which the sheet belt is turned back. Since the stress of the covering member in contact with the edge of the long hole becomes extremely small during stress accumulation, even if a force acts on the covering member from the edge of the long hole, No large stress is generated in the covering member, and the strength is substantially increased as compared with the conventional one. As a result, the strength of the covering member can be reduced by an amount corresponding to the increase in strength, and the safety of the covering member decreases due to a decrease in the strength of the covering member. <, It is possible to reduce the material cost of the covered member, and it is possible to reduce the cost by 3%.

 In addition, if the thickness of the covering member is set with a sufficient safety factor that is sufficient, the covering member may be damaged by any chance. Even if the covering member is damaged, the edge corresponding to the position where the seat belt is turned over in the long hole is formed in a curved shape. If the cover member is damaged in the event that the applied force is not cut off when the bottom plate hits the edge of the slot, However, it is possible to secure safety through seat belts.

 Furthermore, even if the cover member is damaged, the sheet is not cut off even if the cover member is damaged, and the cover member is formed to be thinner. It includes the possibility of doing this.

In the invention according to the second aspect of the present invention, the edge of the long hole corresponding to at least the bent portion of the seat velorette is attached to the base member. When it bulges out to one side, The force that forms a smooth curved surface along the direction in which the belt is folded back can be increased, and the radius of curvature of the edge can be increased. Therefore, the stress concentration of the material to be in contact with the edge can be further reduced from the surrounding side. The above-mentioned edge force, the force that can reduce the surface pressure acting on the covering member, and the force acting on the covering member from the base member are further increased. Can be relaxed

 In the invention according to the third aspect of the present invention, the edge of the long hole is formed so as to protrude toward one side of the base member and the other side. And the forces acting on the covered parts can be further reduced.

 In the invention according to claim 4, the longitudinal end of the long hole is smoothly curved along the direction in which the seat belt is folded. In addition, the force formed in the shape can reduce the stress concentration of the covering member in contact with the end of the long hole. Therefore, the sheet velvet is concentrated in one end side of the slot, for example, in the longitudinal direction of the long hole. Since the force acting on the covering member is dispersed, the force acting on the covering member from the base member can be reduced.

* In the invention according to paragraph 5 or 6 of the claim, the longitudinal end of the long hole may be connected to one side of the base member or to one side of the base member. If it is configured so as to protrude on both the other surface side and the other surface side, it is possible to increase the radius of curvature of the end formed into the curved surface. For this reason, touch the end It is possible to further reduce the stress concentration on the S member. However, it is possible to reduce the surface pressure acting on the S member from the end. Force from the base member

The force acting on the S member can be further reduced.

 In the invention according to claim 7, the outer peripheral edge of the base member is set at a boundary portion between the outer peripheral edge portion and the covered member by one step lower than the outer peripheral edge portion. This prevents the resin from leaking from the boundary along the outer peripheral edge of the base material during insert molding. You can do it. Therefore, it is possible to prevent the formation of burrs due to the covering member at the boundary between the outer peripheral edge of the base member and the covering member.

 However, since it is possible to prevent the resin from leaking into the above-mentioned space, it is necessary to set the mold clamp of the mold strongly to prevent the resin from leaking. Will disappear. As a result, the durability of the mold can be improved.

In the invention according to claim 8, the base member is formed by cold-working a high-tensile steel material, so that the surface of the base member is formed. It is possible to obtain a base member with excellent finishing accuracy and dimensional accuracy. For this reason, even when the base member is inserted into the mold and the insert molding is performed, an abnormal force acts on the mold from the base member. Absent . To increase the life of the mold, and to obtain sufficient strength. The ability to do this eliminates the need to heat treat the village. Therefore, it is possible to reduce the number of manufacturing steps. However, since it is composed of high-strength copper, there is no need to worry about hydrogen embrittlement after the plating process, and it is not necessary to perform a heat treatment for removing hydrogen embrittlement. Thus, it is possible to further reduce manufacturing man-hours, and to reduce costs.

Brief description of the drawings

 FIG. 1 shows a sheet shown as a first embodiment of the present invention.

 1

Fig. 1A is a perspective view, Fig. 1B is a cross-sectional view taken along line I-I in Fig. 1A, and Fig. 1C is a front view showing base members. Is

 Fig. 2 is an explanatory diagram showing one manufacturing process when manufacturing the base member of the seat velvet hanging tool.

 FIG. 3 is an explanatory view showing a second manufacturing process when manufacturing the base member of the seat belt hanging jig.

 FIG. 4 is an explanatory view showing a third manufacturing process when manufacturing the base member of the seat belt hanging device.

 FIG. 5 is an explanatory diagram showing a fourth manufacturing process when manufacturing the base member of the seat belt hanging device.

 FIG. 6 is an explanatory view showing a manufacturing process of ^ 5 when manufacturing the base member of the seat belt hanging device.

 FIG. 7 is an explanatory view showing a sixth manufacturing process when manufacturing the base member of the seat velvet hanging tool.

FIG. 8 is an explanatory diagram showing a second manufacturing process when manufacturing the base member of the seat belt hanging device. FIG. 9 is a view of a seatbelt hanger shown as a second embodiment of the present invention, FIG. 9A is a perspective view, and FIG. 1 It is a cross-sectional view along the H line o

 FIG. 10 is a diagram of a ridge formed on the belt lifting jig, and FIG. 1A is an explanatory diagram showing a first cross-sectional shape of the ridge, and FIG. B is an explanatory diagram showing a second cross-sectional shape of the ridge. FIG. 10C is an explanatory diagram showing a third cross-sectional shape of the ridge. FIG. 11 is a first cross-sectional view of the second embodiment. FIG. 9B is an enlarged cross-sectional view of a position corresponding to a portion B in FIG. 9B, which is a diagram of the seatbelt hanger shown as another example.

 Fig. 12 is a diagram of a seatbelt hanger of another example of the first example, and Fig. 12A corresponds to a cross section along the line A-A of Fig. 9A. FIGS. 12B and 12C, which are enlarged cross-sectional views of the concealment, show an example in which the shape of the groove between the ridges in FIG. 12A is changed. O

 FIG. 13 is a front view showing a seat belt hanger shown as a second other example of the second embodiment.

 FIG. 14 is a view of a seat belt hanging device shown as a third other example of the second embodiment, FIG. 14A is a front view, and FIG. 4B is a cross-sectional view taken along the line III-III in FIG. 14A. FIG. 14C is an enlarged view showing a portion D in FIG. 14A.

 FIG. 15 is a perspective view of a seat belt hanger shown as a fourth other example of the second embodiment.

FIG. 16 is a diagram of a seat belt hanging device shown as a third embodiment of the present invention, and is taken along a line I-I in FIG. It is a cross-sectional view of a position corresponding to

 FIG. 17 is an explanatory view showing a fifth manufacturing process when manufacturing the base member of the seat belt hanger.

 FIG. 18 is an explanatory view showing a sixth manufacturing process when manufacturing the base member of the seat velvet hanging tool.

 FIG. 19 is an explanatory diagram showing a seventh manufacturing process when manufacturing the base member of the same belt hanging tool.

 Fig. 20 shows the other base members of the seat belt lifting device.

 1

Figure 20A is a front view and Figure 20B is an example.

 Four

Sectional view 0

 FIG. 21 is a diagram of a seat belt hanger shown as a fourth embodiment of the present invention, wherein FIG. 21A is a perspective view and FIG. 21B is a base. FIG. 21C is a front view showing the member, and FIG. 21C is a cross-sectional view taken along the line IV-11V in FIG. 21B.

 FIG. 22 is a view of the seatbelt hanging device shown as the fifth embodiment of the present invention, and a sectional position along a line IV-1 V in FIG. 21B. It is a sectional view corresponding to FIG.

 FIGS. 23A and 23B are views of a seat belt hanger shown as a sixth embodiment of the present invention, wherein FIG. 23A is a perspective view and FIG. 23B is a base. Figure 23C is a front view showing the members, and Figure 23C is a cross-sectional view of the seat belt hanger at a position corresponding to the line V-V in Figure 23B.

FIG. 24 is a view of a seat belt hanger shown as a seventh embodiment of the present invention, FIG. 24A is a front view showing a base member, and FIG. 4B corresponds to ffl of V1—V1 line in Fig. 24 A It is a sectional view of a seat venolet hanger of a position.

 FIG. 25 is a front view showing the operation and effect of the seat belt hanger.

 FIG. 26 is a front view showing the operation and effect of the seat belt hanger.

 FIG. 27 is a front view of a seat velvet hanging tool shown as an eighth embodiment of the present invention, showing a base member.

 FIG. 28 is a sectional view of a seat velvet hanging tool shown as a ninth embodiment of the present invention.

 FIG. 2 is a front view showing a base member of the seat belt hanging tool shown as the tenth embodiment of the present invention.

 FIG. 30 is a cross-sectional view of the seatbelt hanger and is a cross-sectional view taken along a line V1I-VII of FIG. 29.

 FIG. 1 is a front view showing a base member of the seat belt hanging tool shown as the first embodiment of the present invention.

 FIG. 32 is a front view showing a base member of the seat belt hanging tool shown as the 12th embodiment of the present invention.

 FIG. 33 is a front view showing a base member of the seat belt hanging tool shown as the thirteenth embodiment of the present invention.

 FIG. 34 is a front view showing a base member of the seat belt hanging tool shown as the 14th embodiment of the present invention.

 Fig. 35 is a cross-sectional view showing the persimmon part of the seatbelt hanger.

Fig. 36 shows another example of the persimmon part of the seatbelt hanger. FIG.

 FIG. 37 is a diagram showing a base member of the seat belt hanging device shown as the fifteenth embodiment of the present invention, and FIG. 37A is a front view and FIG. 37B is an enlarged view showing a step, FIG. 37C is an enlarged view showing a first other example of the step, and FIG. 37D is an enlarged view showing a second other example of the step. .

 FIG. 38 is a plan view of a high-strength steel plate showing a first step to a third step for manufacturing a base member of the sheet belt hanging device.

 FIG. 39 is a plan view of a high-tensile steel plate showing a fourth step to a fifth step for manufacturing a base member of the seat belt hanging device.

 FIG. 40 is a plan view of a high-tensile mesh plate showing a sixth step to a seventh step for manufacturing a base member of the seatbelt hanger.

 FIG. 41 is a plan view of the high-strength steel sheet, showing the eighth step to the tenth step for manufacturing the base member of the seat belt hanger.

 FIG. 42 is a plan view of a high-tensile steel plate showing a tenth process to a eleventh process for manufacturing a base member of the seat belt hanging device.

FIG. 43 is a diagram illustrating the configuration of a three-point seat belt. FIG. 43A is a perspective view and a diagram showing the overall configuration of the three-point seat belt. 43 B is a perspective view showing a conventional seat belt lifting device, and FIG. 43 C is a cross section taken along line X-X of FIG. 43 B. It is a figure.

 FIG. 44 is a front view showing a conventional seat belt hanger.

 FIG. 45 is an explanatory diagram showing a problem of the seat belt hanger.

 FIG. 46 is an explanatory view showing a problem of the seat belt hanging device.

 FIG. 47 is a front view of a seatbelt hanger shown as another conventional example. BEST MODE FOR CARRYING OUT THE INVENTION

 Hereinafter, first embodiments of the present invention will be described with reference to the drawings, and the first embodiment will be described with reference to FIGS. 1 to 8. Elements that are common to the constituent elements are given the same reference numerals, and descriptions thereof are omitted.

 FIG. 1A shows a seat belt suspension 1 attached to the third anchor 73 of the center pillar 3 of the vehicle described with reference to FIG. 43A. FIG. 1B is a perspective view showing the configuration of FIG. 0, and FIG. 1B is a cross-sectional view taken along the line I-I of the seat belt hanging device 10 shown in FIG. 1A. Further, FIG. 1C shows a front view of only the base member 2 ◦ before the covering member 3 ◦ of the seat velvet hanger 10 is attached. . Further, FIGS. 2 to 8 are explanatory views showing each manufacturing process of the base unit 20.

As shown in FIGS. 1A, 1B, and 1C, the seat belt hanger 10 is formed by insert molding an S member 30 onto a base member 20. It has been manufactured by this method. Base member 2

No. 0 is formed by stamping out a net (metal plate) material with a thickness of about jmm and pressing it. The mounting part 20A and the seat belt holding part are formed. O The seat velvet holding portion 2 〇 B is formed at a break by 20 B. The seat velvet holding portion 2 〇 B is specified for the mounting portion 2 〇 A as shown in FIG. 1B. It is formed by bending at an angle (about 30 degrees). At the mounting part 2 吊 A, attach the seatbelt hanger 10 to the third anchor of the vehicle's centerbill 13.

7 3 (see Fig. 43A) has a bolt insertion hole 21 for mounting it, and the seat velorette holding section 20B has a long hole 2 2 is open o

 As shown in FIG. 1B, the elongated hole 22 has a shape in which one edge portion 22 a extending in the long side direction is bulged into an elliptical shape. Then, this edge 22 a is positioned at the position where the advancing belt (auto velvet) 74 (see FIGS. 1B and 43 A) is folded back. Thus, it is formed in a curved shape that smoothly curves along the turning direction of the same Uingbelt 74.

In this embodiment, the covering member 30 is formed by insert molding around the elongated hole 22 of the seat belt holding portion 2 〇B of the base member 20. The base member 20 is installed so as to cover the base member 20, and the partial force corresponding to the above-mentioned elongated hole 22 can be inserted through the penetrating benhole 74. It has a seat belt through-hole 31 in this case. In the conventional seatbelt hanger 78 described with reference to Fig. 43C, the edge 82a of the slot 82 Since it was cut directly, a right-angled corner was formed at this edge portion 82a. As a result, a large stress concentration occurred at the position corresponding to the edge 82a in the S member 90. In this embodiment, the edge 22a of the elongated hole 22 is curved to have a curved surface, and the edge 22a of the elongated hole 22 comes into contact with the edge 22a. The S member 30 does not generate any stress that is extremely small.

 In the figure, T is a projection that is provided at a predetermined interval around the bolt through hole 21, and the projection T is a seatbelt hanger 1. When mounting the 0 to the third anchor 73 (see Fig. 43A) of the vehicle's center villa 13 with a bolt (not shown), It acts as a coffee stop, exhibiting the effects of a conventional cache. As a result, when attaching the seat-be-noreth lifting device 10, there is no need to use a normally-used flasher, so the number of parts is reduced. Can do

 Next, a method of manufacturing the portion of the elongated hole 22 in the base member 20 will be described with reference to FIGS.

First, as shown in FIG. 2 as a first step, a long hole is formed by using a lower mold K1 and a punch K2 on a steel sheet S as a material of a base member 2〇. 22. Drill a first pilot hole S 1 for molding 2. Next, as shown in FIG. 3, as a second step, a steel sheet S is formed from the upper part of the first pilot hole S1 by using a lower die K3 and an upper die K4 as shown in FIG. An arc-shaped roundness S1a is formed on the upper surface. In addition, as shown in FIG. Using the mold K5 and the upper mold Κ6, form an arc-shaped roundness S1b from the lower portion of the first pilot hole S1 to the lower surface of the steel plate S.

 Next, as shown in FIG. 5 as a fourth step, using the lower mold Κ7 and the upper mold K8, the portion of the first lower hole S1 is formed on the mesh plate S as shown in FIG. It is bent upward to form a second pilot hole S 2. Then, as a fifth step, as shown in FIG. 6, a second mold projecting upward using a lower mold Κ9, an upper mold K10, and an intermediate mold 11 is used. The lower hole S 2 is pressed downward to form the convex portions S 3 and S 4 projecting at almost the same height as the vertical force of the steel plate S.

 Further, as shown in FIG. 7 and FIG. 7, using the lower mold K 12 and the upper mold Κ, the convex portion S 3 protruding upward is entirely curved smoothly. Finish as if drawing. At this time, the surface of the second pilot hole S 2 is also finely finished. Next, as a seventh step, as shown in FIG. 8, using the lower mold K 14 and the upper mold Κ 15, the convex portion S 4 projecting downward is entirely formed. Finish so that a smooth curved surface can be drawn.o At this time, also finish the surface of the second pilot hole S2 neatly. While the long hole 22 is formed by the second pilot hole S 2, the upper portion 22 a is expanded in an elliptical shape with respect to the steel plate S by the convex portion SS 4. O to take out shape

In this way, base member 20 having elongated hole 22 is formed from plate S. In addition, the base member 20 is formed by cold working, and the base member 20 is manufactured. Although the method has been described above with respect to the seven steps shown in FIGS. 2 to 8 as described above, it is actually divided into a number of steps, and it is not necessary to change the shape gradually. The molding method is used.

 In the seat belt hanger 10 configured as described above, if the moving belt 74 is in a state in which the belt can be extended, this can be done. By pulling the moving belt 74, the middle part of the moving belt 74 is folded back by the S member 3 〇. The sliding force is drawn out.力 し ヱ ビ ビ ビ ビ 《《さ さ さ さ る れ さ さ さ さ さ さ さ さ さ さ さ さ さ さ 力 力 と 力 力 力 力 力 さ 力It will act directly on the covering material 3 ◦.

The force directly acting on the covering member 30 acts on the edge 22 a of the elongated hole 22 of the base member 20 via the covering member 3 〇. As a reaction, the covered member 30 receives a reaction force of the same magnitude from the edge 22 a of the elongated hole 22. The edge 2 2a corresponding to the position where at least the sheet belt is to be folded back in the slot 22 is formed by the extruding belt. The covering member is in contact with the edge 22a of this long hole because it is formed into a curved surface that smoothly curves along the direction in which 7 4 is folded back. The stress concentration of 30 is extremely small. For this reason, the covering member 30 of the present invention does not generate a large stress even if it receives the force of the edge portion 22 a of the long hole 22, and the conventional covering member 30 does not generate a large stress. This is substantially the same as the increase in strength. The reduced force reduces the thickness of the covered member 30 by an amount corresponding to the increase in the strength, and the force that can be reduced is less than that of the covered member 3 []. — It is possible to reduce the material cost of the S-member 3 同 without lowering the safety due to the lowering of the strength, thereby reducing the cost. Can be planned.

 However, the edge 2 2 a of the elongated hole 2 2 <the force swelling on one side and the other side of the base member 2 ◦ and the edge 2 2 a It is possible to increase the radius of curvature of 2a. With this force, it is possible to sufficiently reduce the stress concentration of the covered member 30 in contact with the edge 22a. The contact force can also be reduced by reducing the surface pressure acting on the covering member 3 ら from the above-mentioned edge portion 22 a force, so that the covering member 20 and the covering member 3 can be reduced. ◦ The working force can be further reduced.

 In addition, if the thickness of the covering member 30 is set with a sufficiently large safety factor that is sufficiently large, the covering member 30 may be damaged by any chance. Although it is not possible to do so, if the covering member 30 is broken, the bending belt 74 in the long hole 22 is folded back. When the edge 22 a corresponding to the position is formed into a curved surface, the aerating knurl 74 corresponds to the edge 22 a of the slot 22. There is no thing that can be cut. In other words, in the event that the covered member 30 is damaged, safety can be ensured by the ゥ Avink “Venolet 74”.

In addition, even if the covering member 3 破損 is broken, even if the covering member 3 〇 is broken, the covering member 3 〇 will not be cut off. Including the possibility of forming a thinner Next, a second embodiment of the present invention will be described with reference to FIG. 9. FIG. 9A shows a seat belt hanger 10 of the second embodiment of the present invention. FIG. 9B is a perspective view showing the configuration, and FIG. 9B is a cross-sectional view taken along the line II-I1 of FIG. 9A. However, the same components as those in the first embodiment shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. The difference between the second embodiment and the first embodiment is that the covering member 30 has a ridge 30a30b formed thereon.

 That is, as shown in FIGS. 1A and 1B, the covering member 30 has parallel edges 22 a and 22 b (bolt through holes 2) in the elongated hole 22. The one closer to 1 is denoted by reference numeral 22b, and the one farthest from the through hole 21 is denoted by reference numeral 22a. It is formed. These projections 30 a 0 b are formed in parallel along the direction in which the ベ being velvet 74 passes. Also, in the second embodiment, the lower ridge 3〇a force << about 11 is formed, and the upper ridge 30b force`about 9 is formed.

 In the second embodiment, the convex ridges 3 〇 b are also provided on the upper side of the seat velvet through-holes 31. -Since the bending velvet 74 does not slide at all times, the ridge 30b may be omitted.

FIG. 10A shows an example of the cross-sectional shape of the ridges 30a and 30b shown in FIG. 9A. The ridges 30 a and 3 〇 b shown in this example are adjacent to each other that are protruding in an arc shape. It is composed of components that have been set up as described above. The width W1 of each of the ridges 30a and 30b is about 4 mm, the height HI is about 0.8 mm, and the radius R1 of the arc is about 2 mm.

 FIG. 10B shows another example of the cross-sectional shape of the ridges 30a and 30b shown in FIG. 9A. The ridges 30a and 30b shown in this example are formed by alternately arranging peaks and valleys formed in an arc shape. The pitch W2 between the valley force and the valley is about 4 mm, the height H2 is about 0.8 mm, and the radii R2 and R3 of the peaks and valleys are both 1 mm. It is on the order.

 FIG. 10C shows another example of the cross-sectional shape of the ridges 30a and 30b shown in FIG. 9A. The protruding strips 30a and 30b shown in this example are configured such that a plurality of trapezoidal protrusions are provided so as to be adjacent to each other. The width W3 of each of the ridges 30a and 30b is about 4 mm, and the height HI is about 0.8 mm. In addition, these convex shapes 30a and 30b can be formed by engraving V-grooves 30c in the flat covering member 30.

As described above, by forming the ridges 30a and 30b in the seatbelt through-holes 31 of the covering member 30, the covered members 30 and ゥ are formed. -The contact area with the bearing belt Ί4 is reduced, and the frictional force applied to the bearing 774 can be reduced. . As a result, the resistance when the moving belt 74 moves in the long hole 22 is increased, and the fragrance from the heating belt 74 increases. Little slippage of sliding As a result, poor winding on the retractor is unlikely to occur, and the ridges 30a and 30b force <ゥ ヱSince it extends along the direction in which it slides, even if the delivery of the belt 94 stops when the vehicle collides,ゥ べ ビ べ べ 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4. As a result, instantaneously, a large friction is generated between the abrading belt 74 and the member to be S 30, and the force disappears. When the temperature between the belt 94 and the S-subject 30 becomes high, the belt is not heated.ク It is possible to prevent the winding belt 74 from having poor winding.

 In addition, by providing both the ridge 30a and the ridge 30b, or only the ridge 30a, on the member 30 to be covered, the strength of dust and the like can be reduced. Since it falls into the groove between the ridge 30a and the ridge 30a, or between the ridge 3 〇b and the ridge 3Ob, the The contact between the cover member 30 and the cover 74 becomes less susceptible to contamination, and the generation of static electricity is also suppressed (addition of an antistatic material to the cover member 30 further reduces static electricity). Therefore, it is easy to move in the through belt 31. Smoothly perform the retraction of the beam, the re-retractor force of the ベ ビ ベ 4 4 4 4 4 4 4 4 4 4 4 4 4 ら ら 4 I can do it.

FIG. 11 is a diagram of the seatbelt hanger 10 shown as a first other example of the second embodiment, and is shown in FIG. 9B. It is an expanded sectional view of the part corresponding to the B section of the seat belt hanging fixture 10 which was made. The S member 30 shown in FIG.

An elongated groove 30d extending in a direction perpendicular to the direction of extension of 30a is provided. This groove 30 d is inserted into the seatbelt insertion hole 31, and is located at the part facing the folded part 74 a of the single-belt belt 74. Articles only

However, as shown by the dashed line in FIG. 11, the grooves 30 d ′ of the plurality of trees may be configured to be provided in parallel with the grooves 30 d. 0d and 30d 'can reduce friction between the belt 107 and the covering member 30 made of base resin.

 Fig. 12A is a view of the seat belt hanger 1 〇 shown in Fig. 11, and the part corresponding to the cross-sectional view along the line AA in Fig. 9A is enlarged. FIGS. 12B and C are cross-sectional views in which the shape of the groove 30 e between the ridge 30 a and the ridge 30 a in FIG. 12A is changed. FIG.

FIG. 13 shows the structure of a seat belt hanging tool 10 shown as a second other example of the second embodiment. The configuration of the seatbelt hanger 10 is almost the same as the configuration of the seatbelt hanger 0 described with reference to FIG. 9A. Near the ends of the covering member 30 in the direction of extension of the ridges 30a, there are formed narrow grooves 30f along the longitudinal direction of the の single belt 74. It's just that. Measures to reduce the friction between the narrow groove 30 f belt and the covering material 3 と ).

 FIG. 14A is a front view of a seatbelt hanger 10 shown as a third other example of the second embodiment. FIG. 14B is a sectional view taken along the line 111—111 of FIG. 14A. In the third other example, the upper part of the seatbelt through hole 31 is not provided with a ridge 30b, and only the lower part is provided with a ridge. 30 a has been formed. Further, in this example, the covering member 30 is provided in a substantially U-shape so as to match the shape of the long hole 22 of the base member 20. Also, as shown in FIG. 14B, the folded portion 74 a of the e-belt belt 74 is provided in the lower portion of the seat belt through hole 31 as shown in FIG. 14B. Only one groove 30 d force is provided at the part opposite to the part shown in Fig. 11).

 FIG. 14C is a partially enlarged view illustrating the shape of the D portion of FIG. 14A, and is provided on the covering members 3 対 応 corresponding to both ends of the elongated hole 22, respectively. It explains the shape of the relief hole 30 g in detail. The width W 6 at the entrance of the relief hole 30 g is 2 to 3 mm, the width W 4 + W 5 at the center of the relief hole 30 g is about 7 mm, and the width of the relief hole 30 g is 30 mm. The radius R5 of the inner arc is about 6 mm, and the radius R6 of the outer arc of the relief hole 30 g is about 6 mm. The radius R7 of the arc inside the entrance of the relief hole 30 g is about 7 mm.

FIG. 15 is a perspective view of a seat-belt hanger 10 shown as a fourth other example of the second embodiment, and is similar to the above-described seatbelt hanger 10 described in FIG. 2 Seat belt suspension of the embodiment 1 The same reference numerals are given to the same constituent members as 0, and the description thereof will be omitted. The seatbelt hanger 10 of this fourth other example is different from the seatbelt hanger 10 in FIG. 9A in that the seatbelt hanger 10 is different. In the lower part of the through hole 31, instead of a plurality of ridges along the longitudinal direction of the ベ belting belt 74, ゥ ゥ one belt 7 This is only the point where a plurality of dome-shaped projections 30 h are arranged in a row along the longitudinal direction of 4.

 Even if the plurality of dome-shaped projections 3Oh are arranged continuously on the covering member 30 as described above, the ベ abing belt 74 and the covering member 30 may be provided. The contact area with the と can be reduced, and the friction against the ベ aving belt 74 can be reduced. As a result, the resistance when moving inside the seatbelt through hole 3 1 is reduced due to the power of the moving belt. The exfoliation of the fragrance material from 7-4 is reduced, and poor winding on the retractor hardly occurs. Note that the shape of the projection 30 h is not limited to a spherical surface.

Next, a third embodiment of the present invention will be described with reference to FIG. 16 to FIG. However, the same reference numerals are given to the same elements as those in the first embodiment shown in FIGS. 1 to 8, and the explanation will be simplified. FIG. 16 is a view showing a seat belt suspension 1 ◦ according to the third embodiment of the present invention, which corresponds to a cross-sectional view taken along line I-I of FIG. 1. FIG. 17 to FIG. 19 are explanatory diagrams illustrating only steps different from the manufacturing steps in FIG. 2 to FIG. This third embodiment is the first. The difference from the embodiment is that the edge portion 22a protrudes only to one surface side of the seat belt holding portion 20B.

 In other words, the edge 22 a protrudes only on one side of the seatbelt retaining portion 20 、, and the protruding side also protrudes. The side that does not protrude is also formed into a smooth curved surface along the direction in which “Abink's Benorette 74” is folded back. In addition, the edge portion 22 a of the present embodiment is formed in the same shape over the entire circumference of the long hole 22.

 The seat velorette hanger 1 ◦ configured as described above is manufactured as shown in FIGS. 17 to 19. Τ: However, the pre-process in FIG. 17 is common to the steps in FIGS. 2 to 5. That is, according to the fourth step shown in FIG. 5, after the portion of the first pilot hole S 1 is curved above the plate S, and the second pilot hole S 2 is formed, As a fifth step, as shown in FIG. 17, using the lower mold K 15 and the upper mold K 16, the portion of the second pilot hole S 2 protruding upward. Is pressed downward to form a convex portion S 3 projecting from the upper surface of the steel sheet S at a substantially constant height o

Further, as shown in FIG. 18 as a sixth step, as shown in FIG. 18, the lower mold K 17 and the upper mold K 18 are used to oppose the convex part S 3 projecting upward. Finish the side edge S5 so as to draw a smooth curved surface. At this time, the surface of the second prepared hole S 2 is also cleaned. Then, as shown in FIG. 19, a lower mold K 19 and an upper mold 20 are used as a seventh step, as shown in FIG. Then, the convex portion S3 protruding upward is raised so as to draw a smooth curved surface as a whole. On this occasion In addition, the surface of the second pilot hole S2 is also finely finished. Then, the elongated hole 22 is formed by the second prepared hole S2 thus finished. Further, the edge portion 22 a protrudes in the shape of a smooth curved surface toward the upper surface side of the steel sheet S by the convex portion S3 and the edge S5.

 The seatbelt hanger 10 configured as described above also has the same operation and effect as the first embodiment.

 In the first embodiment and the second embodiment, the edge 22 a is formed so as to protrude in a chair circular shape. 2a may be formed so as to bulge in a circular shape, or may be formed in another smooth curved surface. Further, the edge 2 2 a bulging into an elliptical shape is formed over the entire circumference of the long hole 22, and the edge 2 2 a formed in this way is ゥヱ It may be configured so that it can be installed only at the position corresponding to the folded part of the single belt 74 (see Fig. 20). Also, with regard to the edge 22 a shown in the third embodiment, the edge 22 a is formed over the entire circumference of the long hole 22, and this edge 22 a is formed. The part 22 a may be configured so that it can be installed only in the folded part of the belt 9 74 (see FIG. 20).

 Next, a fourth embodiment of the present invention will be described with reference to FIG. However, the same elements as those of the conventional example shown in FIGS. 43 to 46 are denoted by the same symbols, and the description is omitted.

 FIG. 21A is a seat velvet attached to the third anchor 73 of the vehicle sunset 13 shown in FIG. 43A.

0 FIG. 21B is a perspective view showing a configuration of the hanging tool 10, and FIG. 21B is a front view showing a base member 20 of the seat belt hanging tool 10, and FIG. C is a cross-sectional view along the line 1 V—IV in FIG. 21B.

 As shown in FIG. 21, the seat velvet hanging fixture 10 is formed by insert molding the G member and the S member 30 to the base member 20. To The base member 20 is formed by stamping out a steel plate (metal plate) having a thickness of about 53 mm and pressing it. -It is composed of a belt holding section 20B. As shown in FIG. 21C, the seat belt holding portion 20B is formed by being bent at a predetermined angle (about 30 degrees) with respect to the mounting portion 20A. Yes. The mounting part 2 開 A has a bolt through hole 21, and the seat belt holding part 20 Β has a long hole 22. The hole 22 has, as shown in FIG. 21B, long edges 22 a and 22 b facing each other and both ends of the long edges 22 a and 22 b. Are formed by the curved short edges 22 c and 22 d formed so as to be continuous with. Each of the long edges 22a and 22b has a shape punched at a right angle to the surface of the base member 20. As shown in FIGS. 21B and C, 22 c and 22 d are bulging portions 2 2 e which bulge on one surface and the other surface of the base member 20, respectively. The cross section is formed in a circular shape

That is, the short edges 22 c and 22 d are formed by the base member 2 ϋ The bulging portion 22 e bulging on one surface side and the other surface side of the ベ along the direction in which the folding bendlet 74 is folded back. It is formed in a smooth, curved surface. In this embodiment, each bulging portion 2 2 e is provided with a short edge 2 2 c

The long-running portions 22a and 22b adjacent to 22d are also formed at both ends. That is, each bulging portion 22 e is formed by the singular bend belt 74 when the bulging belt 74 is suddenly pulled. Belt 74 is formed in the area where it is concentrated o

 Further, each of the bulging portions 22 e is formed by cold heating, and a part of the base member 20 is bent toward one surface side. This bent portion is formed by moving the bent portion to the other surface side and adjusting the bent portion to a tsS shape. Therefore, each bulging portion 2 2 e has a large amount of bulging from the base member 2, and also has an increased strength. o The covering member 30 is insert-molded so as to cover the periphery of the long hole 22 of the base member 20, and corresponds to the long hole 22. The part to be opened so as to form a seatbelt through hole 31. In addition, the seat belt through hole 31 has a long edge 22 a which is located at a position away from the bolt through hole 31, and an opening / closing portion is provided. When the folding belt 74 is folded back, it forms a folded sliding portion 31a that supports the slide itself.

Further, as shown in FIG. 21A, protrusions T projecting at predetermined intervals are formed around the bolt through hole 21. . The projection τ connects the seat belt, Τ, and the fixture 1 、 When the bolts (not shown) are used to attach the third force 7 (see Fig. 43A) of the car 13 to the vehicle, the bolts must not be turned around. It acts as an aa by reducing the length of the bend normal hole edge and acts as an aa and exerts the effect of the conventional puncher. 0 Seat belt hanger 1 0 When installing the, you do not need to use the usual pusher force, so you can reduce the number of parts.

 The seatbelt hanger constructed as described above: In the case of L0, the short edges 22c, 22d of the long 22 and the long adjacent to them are used. The end of the part 22 b is formed into a smooth curved surface along the direction in which the end of the part is turned back. The stress concentration of the covering member 3 ◦ in contact with the ends of the short edges 22 c, 22 d and the long edges 22, 22 b is extremely reduced. Therefore, the duobelt 74 is concentrated on the side of the long hole 22, for example, the short edge 22 c side. Even when the force is applied, the short edge portion 22c and the force acting on the covering member 30 can be dispersed, and the covering member can be dissipated from the base member 20. 3 Relax the force acting on 緩

Furthermore, are bulging portions 22 e formed at the edges 22 c and 22 d and at the ends of the long edges 22 and 22 b adjacent to the edges 22 c and 22 d? , The surface pressure acting on the covering member 30 from the ends of the short edges 22c, 22d and the long edges 22a22b is reduced. Next, the fifth embodiment of the present invention will be described next, in which the force acting on the base member 20 and the force acting on the covered member 30 can be further reduced. See 2 2 1 3 Explain. However, elements common to the fourth embodiment shown in FIG. 21 are denoted by the same reference numerals, and description thereof is omitted. The fifth embodiment differs from the fourth embodiment. A different point is that the bulging portion 22 e is formed so as to bulge only on one surface side of the base member 20.

 As in the fourth embodiment, the bulging portion 22 e extends from both ends of the long edges 22 a and 22 b to the entire short edges 22 c and 22 d. It is formed in such a way. The portion having the bulging portion 22 e is formed into a smooth curved surface along the direction in which the folding hood 74 is folded back. The bulging portion 22 e is formed by cold working, and a part of the base member 20 is bent toward one surface. The curved portion is formed by adjusting the curved portion into a curved surface. Therefore, the bulging portion 22 e has a large amount of bulging from the base member 20, and also has excellent strength.

 Even in the seatbelt hanger 10 configured as described above, the same operation and effect as in the fourth embodiment can be obtained.

 In the fourth embodiment and the fifth embodiment, in the case where the ベ abing belt 74 is suddenly pulled, the 場This ベ aving belt 7 4 force << short edges 22 c, 22 d that are concentrated in the middle and long edges 22 a, 22 b continuous to these A force configured to form a bulged portion 22 e at the end of the wire; ', without providing the bulged portion 22 e in this way, the short edges 2 2 c, 2 2 d and the continuous long edges 2 2 a,

4 one The end of 2 2b may simply be formed into a smooth bend tfo along the direction in which the folding belt 74 is folded back. However, the bulging portion 22 e is not provided.C3 (The force that reduces the radius of curvature of the curved surface described above, and the coating that comes into contact with the short edges 22c, 22d, etc.) Not only does the stress concentration of the member 30 increase, but also the surface pressure acting on the covering member increases, as does the short sections 22c and 22d. Therefore, it is preferable to provide a bulging portion 22 e at the short edges 22 c, 22 d, and the like.

 In addition, if the ベ aving belt 74 does not concentrate intensively, the short edges 22 a and 22 b and the long edges 22 a and Even if it is the end of 22 b, it does not matter whether it does not form the bulge 22 e or form a curved surface o

 Next, a sixth embodiment of the present invention will be described with reference to FIG. 23C). However, elements common to those of the conventional example shown in FIGS. 43 and 47 will be described. Are given the same reference numerals and their description is omitted.

 FIG. 23A is a perspective view showing the configuration of a seat belt hanger 10 that cannot be attached to the third anchor 73 described in FIG. 43, FIG. 23B is a front view showing the base member 20 of the seat belt hanger 10, and FIG. 23C is a view along the line V-V in FIG. 23B. It is a cross-sectional view of the seat velvet hanging holder 10.

 As shown in FIGS. 23A to 23C, the belt hanger 10 is formed by insert molding the cover member 30 onto the base member 20.

5 one (Spray molding). The base member 20 has a thickness

It is formed by punching out a 3 mm thick sheet (metal sheet) material and pressing it. The mounting part 20 A and the seat belt holding part It is composed of 20B. As shown in FIG. 23C, the mounting portion 20A and the seat belt holding portion 20B have a predetermined angle (30 °) with the bent portion L as a boundary. Degree). Then, as shown in FIG. 23B, a bolt through hole 21 is formed in the mounting portion 20A, and the seat belt holding portion 20B is formed. Has a long hole 22 through which a belt (seat belt) 74 can be inserted.

 The long holes 22 connect the straight long edges 22a, 22b facing each other and both ends of these long edges 22a, 22b. The curved short edges 22 c 22 d thus formed are formed. As shown in FIG. 23C, each long edge 22a, 22b and each short edge 22c, 22d force, resulting in a long hole 22, are shown in FIG. — It has a shape punched almost perpendicularly to the plate surface of the stainless steel member 20 o

 The covering member 30 is insert-molded so as to cover the periphery of the elongated hole 22 of the base member 20, and corresponds to the elongated hole 22. The part to be opened is the sheet vent hole 31. In addition, the vent belt through hole 31 is located at the long edge portion 2 located on the side remote from the pocket i j§ hole 2].

The part along 2a is the folding back part 3 1a that folds the advancing belt 7 4 and also supports the steering itself.

6 one Further, as shown in FIGS. 23A to 23 (A), projections T projecting at predetermined intervals are formed around the bolt insertion hole 21. This projection T is used to connect the seat belt suspension 1 〇 with a bolt (not shown) to the third anchor 73 3 of the car pillar 3 of the vehicle. (See Fig. 43) When it is mounted on a bolt, it acts as a bolt to stop the rotation, and exerts the effect of the conventional dasher. When attaching the hanger 10, the usual use of a cache is not required, so that the number of parts can be reduced.

 Further, as shown in FIGS. 23A and 23B, the base member 20 has an outer peripheral edge 23 at a boundary 23 a with the covering member 30 at the outer peripheral edge 23. A step 24 is formed so as to be one step lower than the edge 23. The stepped portion 24 is formed at a substantially right angle with respect to the outer peripheral edge 23, and the surface of the covered member 30 and the surface of the outer peripheral edge 23 are formed at a substantially right angle to the outer peripheral edge 23. It is formed at a height so that it is almost even. That is, the outer peripheral edge 23 of the base member 20 is formed so as to be lower by the stepped portion 24 at the portion on the covered member 30 side by the thickness of the covering member 3◦. The state has been set.

In the seat belt hanger 10 configured as described above, first, the base member 20 is inserted into the mold, and the force is applied to the mold. close . Then, the resin is injected and filled into a space corresponding to the covered member 30 in the mold. As a result, the covered member 30 is formed integrally with the base member 20. By so-called insert molding, the covered member 30 is — Molded integrally with the stainless steel member 20.

 In addition, since the outer peripheral portion 23 of the base member 20 is provided with a step portion 24 set one step lower on the covering member 30 side, the insert molding is performed at the time of insert molding. In this case, it is possible to prevent the resin from leaking from the boundary portion 23 a along the outer peripheral edge portion 23. Thus, the force is used to prevent the occurrence of burrs due to the member 30 at the boundary 23a between the base member 20 and the member S 30. Wear .

 However, as described above, the resin that can prevent the leakage of the resin and the large tightening of the conventional mold can be used to reduce the resin as described above. Although leakage was prevented, it is no longer necessary to set a large mold clamping force. This can improve the mold durability.

 Next, a seventh embodiment of the present invention will be described with reference to FIGS. 24 to 26. FIG. However, the same reference numerals are given to the same components as those described in the sixth embodiment, and the description thereof will be omitted. The seventh embodiment is different from the sixth embodiment in that the long-side end of the long hole 22 is formed on one side and the other side of the base portion 衬 20. As it swells out to the side, it becomes a smooth curved surface along the direction in which the ベ abing belt (sheet velvet) 74 is folded back. It is a point that has been formed.

That is, as shown in FIGS. 24A and 24B, the short edges 22 c and 22 d are respectively formed on one side and the other side of the base member 20. The cross section is elliptical due to the bulging portion 22 e that bulges out. Formed 0

 In this embodiment, each bulge 22 e is formed at both ends of the long edges 22 a and 22 b adjacent to the short edges 22 c and 22 d. Are also formed continuously. That is, as shown in FIG. 26, each of the bulges 22 e is formed by, for example, suddenly pulling a P ビ binge benoleto 74 as shown in FIG. 26. This is formed at the end of the elongated hole 22 where the ゥ abing belt 74 is concentrated.

 Each of the bulging portions 22 e is formed by cold working, and bends a part of the base member 20 toward the negative surface side. This bent portion is formed by moving the bent portion to the other surface side and forming it into a curved surface ^> o and 7 forces. 2e has a large amount of swelling from the base member 20 and is excellent in strength t).

 The seat velvet suspender 10 constructed as described above is made of a base member 20 and a covering member 3 by insert molding similar to the sixth embodiment described above. 0 and are shaped into a body. In addition, for example, when the "one-link" velorette 74 is suddenly pulled, as shown in FIG. G 74 is shifted to one short edge 22 c side (or the other short edge 22 d side), and as shown in FIG. 26, one short edge 22 On the c side (or the other short edge 22 d side), it may be concentrated. O o In this case, on one short edge 22 c side, ゥ X. The power of one belt 74 will be intensively applied.

9 The short edge 22c2 2d and the ends of the long edges 22a and 22b adjacent thereto are slid by the bulge 22e. Since it is formed in a curved surface, the S member 3 ◦ in contact with these short edges 22 c, 22 d, etc. has extremely small stress concentration. There is no power to be generated. (For example, the force of the advancing belt 74 is concentrated on the short edge 22c side of the long hole 22). However, even if there is a force, the force acting on the covered member 30 from the short edge portion 22c side of this one side is dispersed, so that it does not concentrate. Thus, the strength of the covering member 30 can be improved without increasing the thickness and strength of the resin.

 In addition, the contact area between the short edges 22 c, 22 d, etc. and the covering member 30 increases due to the bulging portion 22 e. It is possible to reduce the surface pressure acting on the covered member 30 from 22 c, 22 d, etc. Therefore, in this case, too, the force of the swinging belt 74 is concentrated on one short edge 22c side, for example. Even with this force, the covering member 30 can relieve the force received from the base member 2 ° force. That is, it is possible to improve the strength of the covering member 30 without increasing the thickness and strength of the resin.

Although this does not occur at all, the force of the avenging benorette 74 concentrates on one short edge 22c side, for example. Even if the member to be damaged 30 is damaged by this, one short edge 22 c and the like are bulged by the bulging portion 22 e, so that the べSmooth along the direction in which it is turned back There is no possibility that the power belt formed in the shape is in contact with the short belt 22c or the like, so that the belt is not damaged. In addition, the same operation and effect as those of the sixth embodiment can be obtained.

 Further, in the present embodiment, the positions of the bent portions L are formed on the short edges 22 c and 22 d as shown in FIGS. 24 to 26. It is located at a position avoiding the bulging portion 22 e. When the base member 20 is bent at a predetermined angle at the bent portion L, the same force as that of the above-described sixth embodiment is applied. It can be bent with the pressing force of. This is the same in the other embodiments described above and the other embodiments described later.

 Next, an eighth embodiment of the present invention will be described with reference to FIG. However, the same reference numerals are given to the same components as those of the seventh embodiment shown in FIGS. 24 to 26, and the description thereof will be omitted. The eighth embodiment is different from the seventh embodiment in that a bulging portion 22 e is provided along the entire circumference of the long hole 22.

 That is, in the long hole 22, the entire circumference of the long portions 22 a and 22 b and the short edges 22 c and 22 d is shown in FIG. 24B. A bulging portion 22 e similar to the above is formed on one surface side and the other surface side of the base member 20.

In the seatbelt hanger 10 configured as described above, all the portions of the long holes 22 come into smooth contact with the covering member 3 (). The resulting force is to reduce stress concentration in all parts of the covering member 30 that is in contact with the long holes 22. And can be done. Due to the bulging portion 22 e, the surface pressure can be reduced at all portions where the elongated hole 22 and the S member 30 come into contact with each other by the bulging portion 22 e. Therefore, the strength is improved at all the portions of the covered member 30 along the elongated hole 22 for the same reason as in the seventh embodiment. be able to . Although this does not occur in the unlikely event that the covering member 30 is damaged, all parts of the elongated hole 22 will be damaged. Since it is formed in a smooth curved surface along the direction in which the bending belt 74 is folded back, the single belt 74 is formed. Can be prevented from hitting the long hole 22. In addition, the same operation and effect as those of the sixth embodiment and the seventh embodiment can be obtained.

 Next, a ninth embodiment of the present invention will be described with reference to FIG. However, the same reference numerals are given to the same components as those of the seventh embodiment and the eighth embodiment shown in FIGS. 24 to 27, and the description thereof will be omitted. . The difference between the ninth embodiment and the seventh and eighth embodiments is that the end or the entire circumference of the elongated hole 22 in the longitudinal direction is a base member. It bulges out to one side of 20 and slides along the direction in which the folding velvet (sheet belt) 74 turns back. It is a point that is formed in such a curved surface.

That is, the short edges 22 c and 22 d of the long holes 22 and the long edges 22 a and 22 b adjacent thereto or all of the long holes 22. In the periphery, a bulging portion 22 e that bulges only on one surface side of the base member 20 is formed. Then, the bulging part 2 2 The part having e is formed so as to draw a smooth curved surface along the direction in which the bending belt 74 is folded back. Further, the bulging portion 22 e is formed by cold working, and a part of the base member 20 is bent to one surface side, and this bent portion is formed. It is formed by shaping the surface into a curved surface. As a result, the bulging portion 22 e has a large amount of bulging from the base member 20, and is excellent in strength and strength.

 The seatbelt hanger [0] configured as described above has the same operation and effect as the sixth to eighth embodiments.

 Next, a tenth embodiment of the present invention will be described with reference to FIGS. 29 to 30. FIG. However, the same elements as those of the sixth embodiment shown in FIG. 23 are denoted by the same reference numerals, and description thereof is omitted. The difference between the first embodiment and the sixth embodiment is that the longitudinal end of the long hole 22 is largely open.

 That is, the short edges 22c and 22d of the long hole 22 are formed by an arc having a diameter larger than the dimension between the long edges 22a and 22b. Yes. The short edges 22 c and 22 d may be formed into an elliptical or other curved surface. However, for example, when the ellipse is formed by an elliptical curved surface, it is preferable to arrange the ellipses vertically longer in FIG. 29.

In addition, the short edges 22 c and 22 d of the long holes 22 and the long edges 22 a and 22 b adjacent thereto or all of the long holes 22 may be formed. The perimeter is formed to bend in a sliding force along the turning direction of the extruded belt 74 o

 In the belt hanger 10 constructed as described above, the force at which the radius of curvature of the short edges 22 c and 22 d becomes large is increased. To reduce the stress concentration at the short edges 22c and 22d, the stress generated at the short edges 22c and 22d should be reduced. Can improve the strength of the base member 20 in a practical manner. Alternatively, the distance between the long edges 22a and 22b of the long hole 22 can be improved. The width of the part along the long edge 22a, that is, the part that holds the bi-belt belt 4 The width can be increased, and the strength of the short edges 22 c and 22 d against the jagged belt 74 force is increased. If it can be raised, one long edge 2 2 It is possible to improve the strength of the part along a

The short edges 22 c, 22 d of the holes 22 and the long edges 22 a, 22 b adjacent thereto or the entire circumference of the long holes 22 are covered by the member. The stress that comes into contact with 30 smoothly, and the relaxation of stress during all the parts of the covering member 30 that contacts the long hole 22 I can do it. The strength of all the portions of the covering member 30 along the elongated holes 22 is improved by the same reason as in the seventh embodiment described above. O Although this does not happen at all, even if the covering member 3 破損 is broken, the long hole 22 will not be Along the direction in which the folding belt 74 turns. It is possible to prevent the abrasion belt 74 from being damaged by hitting the long hole 22 by the force formed in a curved surface. In addition, the same operation and effect as those of the sixth and seventh embodiments can be obtained.

 Next, a first embodiment of the present invention will be described with reference to FIG. However, the same elements as those of the tenth embodiment shown in FIG. 2 are denoted by the same reference numerals, and the description thereof will be omitted. The difference between the first embodiment and the first embodiment is that a bulging portion 22 e is provided along one long edge 22 a of the long hole 22. It is a point that has been lost.

 That is, as shown in FIGS. 24A and 28, the long edge 22 a of the side where the elongating bendlet 74 in the long hole 22 is folded back is shown in FIG. Such a bulge 22 e is provided

 Next, a 12th embodiment of the present invention will be described with reference to FIG. 32. ^> o However, elements common to the components of the 10th embodiment shown in FIG. 29 will be described. Are given the same reference numerals, and their description is omitted. The difference between the 12th embodiment and the 10th embodiment lies in the short portions 22c and 22d of the long holes 22 and the long edge portions adjacent thereto. The swelling portion 22 e is provided at the portions 22 a and 22 b. The bulging portion 22 e is made of the same material as that shown in FIG. 24A or FIG. 28.

Next, a thirteenth embodiment of the present invention will be described with reference to FIG. However, the same reference numerals are given to the same components as those in the tenth embodiment shown in FIG. 29, and the same reference numerals are used. Description is omitted. The difference between the thirteenth embodiment and the tenth embodiment is that the swelling portion extends over the entire circumference of the long hole 22.

This is a point that has been set up. The bulging portion 22 e is composed of the same one as shown in FIG. 24A or FIG. 28.

 Next, a fourteenth embodiment of the present invention will be described with reference to FIG. However, the same reference numerals are given to the same components as those of the tenth embodiment shown in FIG. 29, and the description thereof will be omitted. The difference between the fourteenth embodiment and the tenth embodiment is that the reinforcing portion 2 extends along the short edges 22 c and 22 d of the long hole 22. This is the point where 2f is set.

 That is, as shown in FIG. 35, the reinforcing portion 22 f is formed on one surface side of the seatbelt holding portion 20 B so as to swell upwardly. It is. Further, as shown in FIG. 36, the reinforcing portion 22 f is formed so as to be swelled on one and the other surface side so as to raise the force. Okay. By providing the reinforcing portion 22 f, the strength of the portion around the short edges 22 c and 22 d of the base member 20 is improved. Can be improved.

Next, a fifteenth embodiment of the present invention will be described with reference to FIG. 37A. However, the same reference numerals are given to the same components as those in the tenth embodiment shown in FIG. 29, and the description thereof will be omitted. The difference between the fifteenth embodiment and the tenth embodiment is that one of the long edges 22 a of the long hole 22 is formed. The point is that a reinforcement 22 f is provided along the outer part.

 In other words, the long edge 22 a of the side where the long bevel belt 74 in the long hole 22 is folded back has a lower side of the long edge 22 a. A reinforcing portion 22 f as shown in FIGS. 35 and 36 is provided along the portion. By providing the reinforcing portion 22 f, the strength of the portion of the base member 2 ◦ that holds the advancing belt 74 is improved. You can do it.

 In each of the sixth to fifteenth embodiments, as shown in FIG. 37B, the step 24 is formed at a substantially right angle to the outer peripheral edge 23. However, as shown in FIG. 37C, the step portion 24 is formed so as to bite into the outer peripheral portion 23 at an angle, or as shown in FIG. 37D. In this way, the cover member 30 may be formed so as to be inclined to the side of the cover member 30. However, in order to prevent the resin from leaking to the outer peripheral portion 23, as shown in FIG. 37B, the step portion 24 is formed at a substantially right angle to the outer peripheral portion 23. As shown in FIG. 37C, it is preferable to form it so as to bite into the inside of the outer peripheral edge 23 as shown in FIG. 37C.

Further, in each of the sixth to fifteenth embodiments, the step is set so that the surface of the covering member 30 and the surface of the outer peripheral portion 23 are substantially flush with each other. Although the height of the part 24 is set, in order to prevent the resin from leaking along the outer peripheral part 23, the surface of the outer peripheral part 23 is the surface of the covering member 30. Slightly higher It is preferable to set the height of the step portion 24 so that the height of the step portion 24 becomes equal. Further, the base member 20 shown in the first embodiment to the fifteenth embodiment is preferably formed by cold working using a high tensile strength steel. It is better. As the high-strength steel, it is preferable to use one of the chemical components shown in Table 1. Table 2 shows the test results for this high-strength steel.

 By constructing the base member 20 by cold working using the high-tensile net, the surface finish is extremely excellent in terms of precision and dimensional accuracy. The stainless steel member 20 can be obtained. For this reason, when insert molding is performed by placing the base member 20 in a mold, the base member 20 is bent due to the deflection of the base member 20. No abnormal force is applied to the mold from the member 2 ◦. Therefore, it is possible to improve the life of the mold. The work force is also a force capable of hardening the work by cold working and obtaining a sufficient strength, and also eliminates the need for heat treatment. Therefore, the number of manufacturing steps in the base member 20 can be reduced. In addition, since it is made of high-strength steel, there is no need to worry about hydrogen embrittlement after plating, and there is no need for heat treatment to remove hydrogen embrittlement. Therefore, the number of manufacturing steps can be further reduced, and the cost can be reduced.

Next, a process of cold-working the base member 20 by using a high tension wire will be described with reference to FIGS. 38 to 42. FIG. The base member 20 manufactured by the cold working corresponds to the base member 20 shown in FIG. 24, and the bulging portion is provided. 22 e protrudes only to one side as shown in Fig. 28. However, the long hole 22 is formed on a curved surface as shown in FIG. 30 even in a portion where the bulging portion 22 e does not exist.

 The base member 20 is manufactured by a set of press machines that automatically and automatically perform the operations of the respective steps shown in FIGS. 38 to 42.

 First, the high-strength steel sheet S wound into a coil shape, which is the material of the base member 2 ◦, is successively fed into the press machine while being corrected into a flat shape.

 Then, in the first step P1 (see FIG. 38), a slit 1 for separating each base member 20 to be continuously formed is punched. At the same time, punch out the positioning hole H1. At this time, stamps such as necessary numbers and symbols are also pressed at the same time.

 Next, in a second step P2, a pilot hole S2 for forming the long hole 22 is punched out. At this time, burrs are formed on the side where the pilot hole S2 is punched out.

 Then, in the third step P 3, the corner of the prepared hole S 2 on the side where the burrs are formed is pressed, and the corner of the prepared hole S 2 is rounded. As a result, the burrs generated in the second step are removed by being pushed in.

Further, in the fourth step P4 (see Fig. 39), the corner of the pilot hole S2 opposite to the above-mentioned burrs is face-pressed, and the same corner is rounded. . Then, the third and fourth steps described above are repeated II. After preparation, the prepared hole S 2 has a long edge 2 2 a

22 Finish the surface in a beautifully curved shape as shown in 2b.

 Next, in the fifth step P5, a portion corresponding to the short edges 22c and 22d of the long hole 22 in the prepared hole S2 is bent, and the bulging portion 2 is formed. A convex S 3 corresponding to 2 e is formed. At this time, the portion around the convex S 3 is slightly curved in the direction in which the convex S 3 protrudes. That is, the portion around the convex S 3 is distorted.

 Then, in a sixth step P6 (see FIG. 40), the periphery of the convex S3 is formed so as to be flat. Accordingly, when only the convex S3 is protruded from the flat high-strength steel sheet S and a state of a high force is applied, the convex S3 is formed at the same time.

 Next, in the seventh step P7, the convex S3 and other portions are finished into a smooth curved surface by face pressing along the prepared hole S2. As a result, the partial force of the convex S 3 << the short edge 2 2 c having the curved bulge 22 e as shown in FIG. 28

22 d, and the other portions become curved long edges 22 a, 22 b as shown in FIG. 30.

 Then, in an eighth step P8, a hole S4 for forming the lower and upper portions of the base member 2 部 材 to be formed adjacently is punched out.

 In a ninth step P9, a necessary hole S5 is punched out. Next, in a 10th process P10, the bolt through hole 21 is punched out, and the outer peripheral edge 23 of the base member 20 is punched.

½ However, to connect adjacent base sections 20

0 one Only the connecting plate S6 of the above is left.

 Then, in the first step PI1, the connecting member S6 is separated from the adjacent base member 20 by force, thereby separating the base member 20 individually. Is completed.

 In the method of manufacturing the base member 2 ◦ configured as described above, the bulge portion 2 2 e is formed by bending the edge portion of the prepared hole S 2. Since it is formed, it is possible to protrude the bulged portion 22 e greatly from the plate surface force of the base member 20. The bulging part 22e and other parts can be finely finished in a smooth curved surface by the pressing force and the face pressing. In other words, only the press machine can be used to finish the edge of the elongated hole 22 in a curved shape neatly. ) Is no longer necessary. This can be used to reduce costs.

 Further, the amount of protrusion of the bulging portion 22 e can be formed to be 0.2 to 0.5 times the thickness of the substrate 2 as shown in FIG. Therefore, the contact area between the elongated hole 22 and the covering member 30 can be increased, and the surface pressure on the covering member 30 can be reduced. .

Note that, in addition to the step of forming the convex S3 of the fifth step P5, the method of FIGS. 6 to 8 shown in the first embodiment is carried out. It is possible to form bulging portions 22 e projecting from one side and the other side of the base portion 20. That is, a bulged portion 22 e as shown in FIG. 24 can be formed. Each bulge generated on this platform 2 2 The protrusion amount of e can be formed to be 0.2 to 0.5 times the thickness of the base member 20. Also in the manufacturing method shown in FIGS. 2 to 8 and FIGS. 17 to 19, the amount of protrusion of each bulging portion 22 e is 0.2 to 0.5 of the thickness of the substrate 2. Can be formed twice

 In the invention according to claim 1, if the seatbelt is in a state where it can be fed out, for example, the seatbelt is pulled. As a result, the middle part of the seat belt is folded back by the covering member, and the sliding belt is fed out with a sliding force. However, when the feeding of the seat belt is stopped, the pulling force of the seat belt acts directly on the covering member.

The force directly acting on the covered member acts on the elongated hole of the base member via the covered member, and as a reaction, the covering member is at the edge of the elongated hole. However, the edge corresponding to the position where the seatbelt is folded back at least in the slot is to be received. A force that is formed in a curved surface that smoothly curves along the direction in which the knot folds back, and the stress of the covered member that contacts the edge of this long hole Since the concentration is extremely small, even if a force acts on the covering member from the edge of the long hole, a large stress is generated on the covering member. However, the result is substantially the same as that of the conventional one, in which the strength is substantially increased. Therefore, the increased strength reduces the thickness of the covered member; the force that can be reduced; and the reduced safety due to the reduced strength of the covered member. Must come <, It is possible to reduce the material cost of the S member, and thereby to reduce the cost.

 In addition, if the thickness of the S-member is set with a sufficient safety factor, the covering member may be damaged by any chance. However, if the S-piece is damaged, the edge corresponding to the position where the seatbelt is turned over in the long hole will have a curved surface. The force that is formed on the sheet will not cause the sheet velvet to hit the edge of the slot and break, that is, the member may be damaged. Even in such cases, it is still possible to secure safety through seat belts.

 Furthermore, even if the S-member is damaged, the seat belt is not cut off even if the S-member is broken, so the S-member should be made thinner. Includes the possibility for

 In the invention according to claim 2, the edge of the long hole corresponding to at least the bent portion of the seatbelt is formed on the base member. The force that bulges out to the surface side and forms a smooth curved surface along the direction in which the seat velvet is folded back It is possible to increase the radius of curvature of the edge, thereby reducing the stress concentration of the cladding member that comes into contact with the edge. And power. Since the surface pressure applied to the covering member from the edge portion can be reduced, the force applied from the base member to the covering member can be reduced. O

In the invention according to the claimed invention, the edge of the elongated hole is bulged to the surface side of the base portion and the other surface side. Since it is configured to be zero, the force acting on the S member can be further reduced.

 In the invention according to claim 4, the longitudinal end of the long hole is smoothly curved along the direction in which the sheet belt is folded back. Since it is formed in a shape, it is possible to reduce the stress concentration of the S member to be brought into contact with the end of the same long hole. Therefore, if the seat belt is concentrated on one end of the slot in the longitudinal direction of the slot, for example, the strength is such that the seat belt is concentrated. Since the end force and the force acting on the S member are dispersed, the force acting on the S member from the base member can be reduced.

 I In the invention according to paragraph 5 or 6 of the scope of the request, the longitudinal end of the long hole may be connected to one side of the base member or to one side of the base member. Since it is configured so as to swell on both sides on the other surface side, it is possible to increase the radius of curvature of the end formed into the above-mentioned curved surface. o The surface acting on the covered member from the end can also be used to further reduce the stress accumulation of the covered member in contact with the end. The pressure can be reduced. Therefore, the force acting on the covered member from the base member can be further reduced.

 In the invention according to claim 7, the step at the boundary between the outer peripheral edge of the base member and the covering member is set to be one step lower than the outer peripheral edge. During insert molding, prevent the resin from leaking along the outer periphery of the part of the material from the above boundary at the time of insert molding. I can do it. did

4 one Accordingly, it is possible to prevent the occurrence of burrs due to the S member at the boundary between the s member and the outer peripheral edge of the base member.

 However, since it is possible to prevent the leakage of resin as described above, it is necessary to set the mold clamping force of the mold strongly to prevent the leakage of resin. O It is possible to improve the durability of the mold due to the loss of

In the invention according to claim 8, the base member is formed by cold-working a high-tensile mesh material, and It is possible to obtain a base member with extremely good finishing accuracy and dimensional accuracy. For this reason, even when inserting the base member into the mold and performing the insert molding, an abnormal force is not applied to the mold from the base member. No. The added power can improve the life of the mold. The work force is also hardened by cold working, and the force required to obtain sufficient strength eliminates the need to heat-treat the base member. Therefore, it is possible to reduce manufacturing man-hours. However, since it is made of high-strength steel, there is no concern about hydrogen embrittlement after the plating process, and heat treatment for removing hydrogen embrittlement is not required. And it was but One, Ki out and this you low, dropping to the al manufacturing man-hours, Ru is out of the 3 scan Bok of the low ', dropping it and Figure Ru this _Q table 1

 Chemical composition% (molten steel analysis value)

C 0.15 or less

S i 1.5 or less

M n 1.80 or less

P 0 .0 3 0 or less

S 0 .0 10 or less

A 10 .0 80 or less Other Cr

Table 2 Yield point N mm (Yield ratio 70% or more)

 Tensile strength N Zm m 780 or more

 Zhang

 ¾Z m m 2.0 or more 2.5 or more 3.0 or more Test elongation 2.5 or less 3.0 or less 4.5 or less Test 96 8 or more 9 or more 20 or more and

 Test piece JIS No.5 Direction perpendicular to the rolling direction Curve 极 Thickness mm 2.0 or more 3.2 or more Test piece 3.2 or less 4.5 or less J IS No.3

 Inner radius 1.0 T 1.5 T trial in rolling direction

 Right angle direction

 Bending angle 1 800 degrees

7-

Claims

The scope of the claims

1. The mid section of the seat belt, which is set up so that it can be extended, and which is designed to stop the extension in an emergency, It is a seat belt suspension that can be folded and suspended on its own.

 A base member made of a metal plate having a long hole;

 At least a portion of the base member is covered with a synthetic resin covering the periphery of the elongated hole and forming a seatbelt through hole in a portion corresponding to the elongated hole. And members,

 The slot has an edge corresponding to at least the bent portion of the seatbelt along the bent direction of the seatbelt. A seatbelt hanger characterized in that it is formed into a curved surface that smoothly curves.

 2. At least the edge of the long hole corresponding to the bent part of the seat belt should protrude to one side of the base member. The sheet according to claim 1, characterized in that the sheet belt is formed in a smooth curved surface along the direction in which the sheet belt is turned back.ー Ultbelt lifting equipment.

3. At least the edge of the slot corresponding to the bent part of the seatbelt is expanded on one side and the other side of the base member. The claim is characterized by being formed in a smooth curved surface along the direction in which the seat belt is folded back. A seat belt suspension according to paragraph 1 of paragraph 1.

4. Fold back the middle of the seatbelt that is set up so that it can be fed out and that is set up so that it can be stopped in an emergency. Thus, a sheet-belt hanger which is hung in the sliding position,

 A base member made of a metal plate having a long hole;

 A synthetic resin covering member that covers at least the periphery of the elongated hole and forms a seat belt through hole in a portion corresponding to the elongated hole; ,

 The end of the long hole in the longitudinal direction is formed to have a smooth curved surface along the direction in which the sheet belt is folded back. -Belt lifting equipment.

 5. The longitudinal end of the long hole protrudes toward one side of the base member and slides along the direction in which the sheet belt is folded back. The seatbelt hanger according to claim 4, wherein the hanger is formed in a curved shape.

 6. The longitudinal end of the long hole bulges to one side and the other side of the base member, and the direction in which the sheet belt is folded back. The seatbelt hanger according to claim 4, characterized in that it is formed in a smooth curved surface along the line.

 7. The middle part of the seat belt, which is configured to be able to be extended and is designed to stop ejection in an emergency, is to be turned back. In this way, it is a sheet-belt hanger that is hung on its own.

A metal with a long hole to pass through the seat belt A plate base member,

 A synthetic resin S member for covering the periphery of the elongated hole of the base member;

 A seatbelt hanger, characterized in that a step set one step lower is provided at an outer peripheral edge of the base member at a boundary with the member to be covered. .

 8. The claim characterized in that the base member is formed by cold working from a high-tensile steel material.

A seat belt suspension according to any one of the first, second, third, fourth, fifth, sixth or seventh items.